diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
new file mode 100644
index 0000000000000000000000000000000000000000..cea2c19ee496e2711d9b7352e199ed1febb67e4b
--- /dev/null
+++ b/.gitlab-ci.yml
@@ -0,0 +1,68 @@
+image: python:latest
+
+stages:    
+  - validate
+
+before_script:
+  - python -V
+  - pip install virtualenv
+  - virtualenv venv
+  - source venv/bin/activate
+
+validate:
+  stage:
+    validate
+  tags:
+    - runner:docker
+  parallel:
+    matrix:
+      - KIND: "Ontologies"
+      - KIND: "Profiles"
+      - KIND: "Rules"
+      - KIND: "Terms"
+      - KIND: "Vocabularies"
+  variables:
+    TTLNAME: "*.ttl"
+    FAILONERROR: 1
+    JUNITREPORT: .out/report.xml
+  script:    
+    - pip install pyshacl   
+    - TTLDIR=`echo "$KIND" | awk '{ print tolower($1) }'`
+    - mkdir -p ".out/$TTLDIR"
+    - |
+      echo "<?xml version=\"1.0\" encoding=\"UTF-8\" ?>" >> $JUNITREPORT
+      echo "<testsuites id=\"$(date -Iseconds)\" name=\"RDF Validation\">" >> $JUNITREPORT
+      echo "<testsuite id=\"shapevalidation.$KIND\" name=\"$KIND Validation\">" >> $JUNITREPORT
+      FAIL=0
+      for RDFFILE in $(find "$TTLDIR" -name "$TTLNAME");
+      do
+        REPORT=".out/$RDFFILE.report"
+        mkdir -p $(dirname $REPORT) ; touch $(basename $REPORT)
+        pyshacl -i rdfs $RDFFILE >> $REPORT 2>&1 || FAIL=1 ; (exit 0)
+        echo "<testcase id=\"$RDFFILE\" name=\"$RDFFILE\">" >> $JUNITREPORT
+        if [[ "$(tail $REPORT)" =~ "Conforms: True" ]]
+        then
+          echo "- [OK] \"$RDFFILE\" conforms!"
+        else 
+          echo "- [ERROR] \"$RDFFILE\" does not conform!"
+          MSG="Validation Error"
+          if [[ "$(tail $REPORT)" =~ (rdflib\.plugins)(.*\n*)* ]]; then
+            MSG=`echo "${BASH_REMATCH[0]}" | sed 's/&/\&amp;/g; s/</\&lt;/g; s/>/\&gt;/g; s/"/\&quot;/g; s/'"'"'/\&#39;/g'`
+            echo "${BASH_REMATCH[0]}"
+          fi
+          echo "<failure message=\"Validation Error\" type=\"ERROR\">"$MSG"</failure>" >> $JUNITREPORT
+        fi
+        echo "</testcase>" >> $JUNITREPORT
+      done
+      echo "</testsuite>" >> $JUNITREPORT
+      echo "</testsuites>" >> $JUNITREPORT
+      mkdir -p $(dirname .out/$KIND)
+      cp $JUNITREPORT .out/$KIND.xml
+      (exit $(($FAILONERROR && $FAIL)))
+  artifacts:
+      paths:
+        - .out
+      expire_in: 1 day
+      when: always
+      reports:
+        junit: $JUNITREPORT
diff --git a/ontologies/dc/terms/index.ttl b/ontologies/dc/terms/index.ttl
index 40227aa5e7e0f3ca97fc706c9c3a433d0364d07f..06525cdce81e2fabd08fdb5c7d9eb4b41ab104b8 100644
--- a/ontologies/dc/terms/index.ttl
+++ b/ontologies/dc/terms/index.ttl
@@ -49,7 +49,7 @@ dcterms:DCMIType
     rdfs:comment "The set of classes specified by the DCMI Type Vocabulary, used to categorize the nature or genre of the resource."@en ;
     rdfs:isDefinedBy <http://purl.org/dc/terms/> ;
     rdfs:label "DCMI Type Vocabulary"@en ;
-    rdfs:seeAlso <http://purl.org/dc/dcmitype/> .
+    rdfs:seeAlso <http://purl.org/dc/dcmitype/> ;
 
 dcterms:DDC
     dcterms:issued "2000-07-11"^^<http://www.w3.org/2001/XMLSchema#date> ;
diff --git a/profiles/radar/index.ttl b/profiles/radar/index.ttl
index c27a8a8fdeba3cb4e9304b12744f4a3354104a87..17e8feb0f0917569411ce941c386cb141e83e6fa 100644
--- a/profiles/radar/index.ttl
+++ b/profiles/radar/index.ttl
@@ -28,7 +28,7 @@
   sh:property coscineradar:subject ;
   sh:property coscineradar:type ;
   sh:property coscineradar:rights ;
-  sh:property coscineradar:rightsHolder .
+  sh:property coscineradar:rightsHolder ;
 
 coscineradar:creator
   sh:path dcterms:creator ;
diff --git a/vocabularies/auto/criticality_phenomena/index.ttl b/vocabularies/auto/criticality_phenomena/index.ttl
index 1a9aea3a931b35dc40fd279e3605b58e52e371aa..7fa90914dd6b6b0ac8cbf32e5bdef2f1d08a58ec 100644
--- a/vocabularies/auto/criticality_phenomena/index.ttl
+++ b/vocabularies/auto/criticality_phenomena/index.ttl
@@ -1,6 +1,5 @@
 @base <http://purl.org/auto/criticality_phenomena#Criticality_Phenomenon> .
 
-@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
 @prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
 @prefix dcterms: <http://purl.org/dc/terms/> .
 @prefix auto: <http://purl.org/auto/> .